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Prototipe Penekan Tombol Otomatis Simulator Meter kWh Untuk Pengisian Token Berbasis Mikroprosesor dan API Telegram Firmansyah, Vera; Oktaviyana, Karlina; Fathan, H. Syauqi; Muslim, Azis; Firmansyah, Firmansyah; Gunawan TW, Nandang; Sutanto , Willi; Gianto, Gianto
Jurnal Otomasi Kontrol dan Instrumentasi Vol 16 No 2 (2024): Jurnal Otomasi Kontrol dan Instrumentasi
Publisher : Pusat Teknologi Instrumentasi dan Otomasi (PTIO) - Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/joki.2024.16.2.7

Abstract

The change of payment method for electrical energy to prepaid by the Perusahaan Listrik Negara (PLN) is based on the increase in the use of electrical power, and there are areas for improvement in the postpaid system. The prepaid method uses the Standard Transfer Specification (STS) system, users enter a 20-digit token number on the kWh by pressing the kWh meter keyboard, but there are some things that could be improved if they look at the placement of the kWh meter. The user's mobility is very high. The Internet of Things (IoT) system of the kWh meter automatic button press aims to make it easier for users. The prototype uses critical components such as Raspberry PI 3B as a microprocessor, telegram as user input and output, and 12 solenoids as a keypress medium. System feasibility testing is carried out by testing the accuracy of suppression, filling time, and the receipt of messages on bot telegrams. Accuracy for each button with a test of 20 presented at a delay of 2.00 seconds to 0.04 seconds got 100% accurate results. Tested the charging time with a 100% curated delay results in the fastest time with the highest accuracy rate on a delay of 0.10 seconds to 0.04 seconds faster when compared to manual charging. On the receipt of telegram messages, get 100% test results with the consideration of 13 letters received by users. Further development can be done considering the bot display, user inputs and outputs, and customized containers on the kWh meter.
Perancangan Purwarupa Pengukur Kadar Air dan Kualitas Pangan Komoditas Beras dan Jagung Menggunakan Sensor Kapasitif Firmansyah, Dudi; Rahmawati, Riski Amalia; Firmansyah, Vera; Gianto, Gianto; Sutanto, Willi; Waras, Nandang Gunawan Tunggal; Yasri, Budi; Muslim, Azis; Irwanto, Decky Ari; Karsono, Eko; Alam, Hilman Syaeful; Sanjaya, Ari Susandy
Jurnal Otomasi Kontrol dan Instrumentasi Vol 16 No 2 (2024): Jurnal Otomasi Kontrol dan Instrumentasi
Publisher : Pusat Teknologi Instrumentasi dan Otomasi (PTIO) - Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/joki.2024.16.2.6

Abstract

Water content is an indicator that can affect food quality and safety as well as commodity prices. Therefore, measuring the moisture content of commodities is important to ensure the food system viability. The development of increasingly sophisticated technology has led many companies to introduce water content measuring instruments called Moisture Content Meters (MCM). However, this tool is marketed at an expensive price. In this research, a prototype for measuring the moisture content and food quality of rice and corn commodities using a cheap capacitive sensor has been successfully made according to the design. Based on the testing results, this prototype has an accuracy value of 98,9%, precision of 97,4%, and error of 1,1%. The test results show that this prototype is accurate enough to measure the moisture contents of rice and corn samples, accompanied by consistent food quality indications according to applicable quality standards.  
Analisis Penerapan Manajemen Keselamatan dan Kesehatan Kerja pada Proyek Konstruksi Johari, Ganjar Jojon; Muslim, Azis
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2545

Abstract

The construction sector carries a high risk of workplace accidents, making the implementation of Occupational Health and Safety (OHS) management essential to ensure worker safety and support smooth project execution. This study aims to analyze the extent of OHS management implementation in the Rancabango Hotel Construction Project, Garut Regency, and to identify inhibiting factors and control measures. The research applied a descriptive quantitative approach through questionnaires distributed to 65 respondents representing various project roles. Data were analyzed using descriptive statistical methods and the Respondent Satisfaction Index (RSI). The results show that several aspects have been implemented relatively well, including OHS policies (X = 3.17), equipment and machinery inspection (X = 3.4), and workplace cleanliness (X = 3.46), all of which fall into the “Agree” category. However, there remain significant weaknesses in OHS implementation, particularly in accident evaluation (X = 2.15), use of personal protective equipment (PPE) (X = 2.34), and leadership attention to OHS (X = 2.34), which are all categorized as “Disagree.” These factors represent the main obstacles to effective OHS management on the project. As control measures, the study recommends appointing certified OHS officers, improving training and awareness programs, and implementing standard operating procedures (SOPs) for regular accident evaluations. The findings are expected to serve as a reference for enhancing the effectiveness of OHS management in construction projects, thereby reducing potential workplace accidents, improving productivity, and fostering a safer and more sustainable work environment.